Properties

Label 392.2.a.h.1.1
Level $392$
Weight $2$
Character 392.1
Self dual yes
Analytic conductor $3.130$
Analytic rank $0$
Dimension $2$
Inner twists $2$

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Show commands: Magma / Pari/GP / SageMath

Newspace parameters

Copy content comment:Compute space of new eigenforms
 
Copy content gp:[N,k,chi] = [392,2,Mod(1,392)] mf = mfinit([N,k,chi],0) lf = mfeigenbasis(mf)
 
Copy content magma:// Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code chi := DirichletCharacter("392.1"); S:= CuspForms(chi, 2); N := Newforms(S);
 
Copy content sage:from sage.modular.dirichlet import DirichletCharacter H = DirichletGroup(392, base_ring=CyclotomicField(2)) chi = DirichletCharacter(H, H._module([0, 0, 0])) N = Newforms(chi, 2, names="a")
 
Level: \( N \) \(=\) \( 392 = 2^{3} \cdot 7^{2} \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 392.a (trivial)

Newform invariants

Copy content comment:select newform
 
Copy content sage:traces = [2,0,0,0,0,0,0,0,10] f = next(g for g in N if [g.coefficient(i+1).trace() for i in range(9)] == traces)
 
Copy content gp:f = lf[1] \\ Warning: the index may be different
 
Self dual: yes
Analytic conductor: \(3.13013575923\)
Analytic rank: \(0\)
Dimension: \(2\)
Coefficient field: \(\Q(\zeta_{8})^+\)
Copy content comment:defining polynomial
 
Copy content gp:f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{2} - 2 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, a_2, a_3]\)
Coefficient ring index: \( 2 \)
Twist minimal: yes
Fricke sign: \(-1\)
Sato-Tate group: $\mathrm{SU}(2)$

Embedding invariants

Embedding label 1.1
Root \(-1.41421\) of defining polynomial
Character \(\chi\) \(=\) 392.1

$q$-expansion

Copy content comment:q-expansion
 
Copy content sage:f.q_expansion() # note that sage often uses an isomorphic number field
 
Copy content gp:mfcoefs(f, 20)
 
\(f(q)\) \(=\) \(q-2.82843 q^{3} -2.82843 q^{5} +5.00000 q^{9} -4.00000 q^{11} +2.82843 q^{13} +8.00000 q^{15} +5.65685 q^{17} +2.82843 q^{19} +3.00000 q^{25} -5.65685 q^{27} +2.00000 q^{29} +5.65685 q^{31} +11.3137 q^{33} +10.0000 q^{37} -8.00000 q^{39} -5.65685 q^{41} -4.00000 q^{43} -14.1421 q^{45} -5.65685 q^{47} -16.0000 q^{51} +6.00000 q^{53} +11.3137 q^{55} -8.00000 q^{57} +2.82843 q^{59} -14.1421 q^{61} -8.00000 q^{65} +12.0000 q^{67} -8.48528 q^{75} +8.00000 q^{79} +1.00000 q^{81} +14.1421 q^{83} -16.0000 q^{85} -5.65685 q^{87} -16.0000 q^{93} -8.00000 q^{95} -5.65685 q^{97} -20.0000 q^{99} +O(q^{100})\)
\(\operatorname{Tr}(f)(q)\) \(=\) \( 2 q + 10 q^{9} - 8 q^{11} + 16 q^{15} + 6 q^{25} + 4 q^{29} + 20 q^{37} - 16 q^{39} - 8 q^{43} - 32 q^{51} + 12 q^{53} - 16 q^{57} - 16 q^{65} + 24 q^{67} + 16 q^{79} + 2 q^{81} - 32 q^{85} - 32 q^{93}+ \cdots - 40 q^{99}+O(q^{100}) \) Copy content Toggle raw display

Coefficient data

For each \(n\) we display the coefficients of the \(q\)-expansion \(a_n\), the Satake parameters \(\alpha_p\), and the Satake angles \(\theta_p = \textrm{Arg}(\alpha_p)\). You can download additional coefficients here.



Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)
Significant digits:
\(n\) \(a_n\) \(a_n / n^{(k-1)/2}\) \( \alpha_n \) \( \theta_n \)
\(p\) \(a_p\) \(a_p / p^{(k-1)/2}\) \( \alpha_p\) \( \theta_p \)
\(2\) 0 0
\(3\) −2.82843 −1.63299 −0.816497 − 0.577350i \(-0.804087\pi\)
−0.816497 + 0.577350i \(0.804087\pi\)
\(4\) 0 0
\(5\) −2.82843 −1.26491 −0.632456 − 0.774597i \(-0.717953\pi\)
−0.632456 + 0.774597i \(0.717953\pi\)
\(6\) 0 0
\(7\) 0 0
\(8\) 0 0
\(9\) 5.00000 1.66667
\(10\) 0 0
\(11\) −4.00000 −1.20605 −0.603023 − 0.797724i \(-0.706037\pi\)
−0.603023 + 0.797724i \(0.706037\pi\)
\(12\) 0 0
\(13\) 2.82843 0.784465 0.392232 − 0.919866i \(-0.371703\pi\)
0.392232 + 0.919866i \(0.371703\pi\)
\(14\) 0 0
\(15\) 8.00000 2.06559
\(16\) 0 0
\(17\) 5.65685 1.37199 0.685994 − 0.727607i \(-0.259367\pi\)
0.685994 + 0.727607i \(0.259367\pi\)
\(18\) 0 0
\(19\) 2.82843 0.648886 0.324443 − 0.945905i \(-0.394823\pi\)
0.324443 + 0.945905i \(0.394823\pi\)
\(20\) 0 0
\(21\) 0 0
\(22\) 0 0
\(23\) 0 0 − 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(24\) 0 0
\(25\) 3.00000 0.600000
\(26\) 0 0
\(27\) −5.65685 −1.08866
\(28\) 0 0
\(29\) 2.00000 0.371391 0.185695 − 0.982607i \(-0.440546\pi\)
0.185695 + 0.982607i \(0.440546\pi\)
\(30\) 0 0
\(31\) 5.65685 1.01600 0.508001 − 0.861357i \(-0.330385\pi\)
0.508001 + 0.861357i \(0.330385\pi\)
\(32\) 0 0
\(33\) 11.3137 1.96946
\(34\) 0 0
\(35\) 0 0
\(36\) 0 0
\(37\) 10.0000 1.64399 0.821995 − 0.569495i \(-0.192861\pi\)
0.821995 + 0.569495i \(0.192861\pi\)
\(38\) 0 0
\(39\) −8.00000 −1.28103
\(40\) 0 0
\(41\) −5.65685 −0.883452 −0.441726 − 0.897150i \(-0.645634\pi\)
−0.441726 + 0.897150i \(0.645634\pi\)
\(42\) 0 0
\(43\) −4.00000 −0.609994 −0.304997 − 0.952353i \(-0.598656\pi\)
−0.304997 + 0.952353i \(0.598656\pi\)
\(44\) 0 0
\(45\) −14.1421 −2.10819
\(46\) 0 0
\(47\) −5.65685 −0.825137 −0.412568 − 0.910927i \(-0.635368\pi\)
−0.412568 + 0.910927i \(0.635368\pi\)
\(48\) 0 0
\(49\) 0 0
\(50\) 0 0
\(51\) −16.0000 −2.24045
\(52\) 0 0
\(53\) 6.00000 0.824163 0.412082 − 0.911147i \(-0.364802\pi\)
0.412082 + 0.911147i \(0.364802\pi\)
\(54\) 0 0
\(55\) 11.3137 1.52554
\(56\) 0 0
\(57\) −8.00000 −1.05963
\(58\) 0 0
\(59\) 2.82843 0.368230 0.184115 − 0.982905i \(-0.441058\pi\)
0.184115 + 0.982905i \(0.441058\pi\)
\(60\) 0 0
\(61\) −14.1421 −1.81071 −0.905357 − 0.424650i \(-0.860397\pi\)
−0.905357 + 0.424650i \(0.860397\pi\)
\(62\) 0 0
\(63\) 0 0
\(64\) 0 0
\(65\) −8.00000 −0.992278
\(66\) 0 0
\(67\) 12.0000 1.46603 0.733017 − 0.680211i \(-0.238112\pi\)
0.733017 + 0.680211i \(0.238112\pi\)
\(68\) 0 0
\(69\) 0 0
\(70\) 0 0
\(71\) 0 0 − 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(72\) 0 0
\(73\) 0 0 − 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(74\) 0 0
\(75\) −8.48528 −0.979796
\(76\) 0 0
\(77\) 0 0
\(78\) 0 0
\(79\) 8.00000 0.900070 0.450035 − 0.893011i \(-0.351411\pi\)
0.450035 + 0.893011i \(0.351411\pi\)
\(80\) 0 0
\(81\) 1.00000 0.111111
\(82\) 0 0
\(83\) 14.1421 1.55230 0.776151 − 0.630548i \(-0.217170\pi\)
0.776151 + 0.630548i \(0.217170\pi\)
\(84\) 0 0
\(85\) −16.0000 −1.73544
\(86\) 0 0
\(87\) −5.65685 −0.606478
\(88\) 0 0
\(89\) 0 0 − 1.00000i \(-0.5\pi\)
1.00000i \(0.5\pi\)
\(90\) 0 0
\(91\) 0 0
\(92\) 0 0
\(93\) −16.0000 −1.65912
\(94\) 0 0
\(95\) −8.00000 −0.820783
\(96\) 0 0
\(97\) −5.65685 −0.574367 −0.287183 − 0.957876i \(-0.592719\pi\)
−0.287183 + 0.957876i \(0.592719\pi\)
\(98\) 0 0
\(99\) −20.0000 −2.01008
Currently showing only \(a_p\); display all \(a_n\) Currently showing all \(a_n\); display only \(a_p\)

Twists

       By twisting character
Char Parity Ord Type Twist Min Dim
1.1 even 1 trivial 392.2.a.h.1.1 ✓ 2
3.2 odd 2 3528.2.a.bj.1.2 2
4.3 odd 2 784.2.a.n.1.2 2
5.4 even 2 9800.2.a.bw.1.2 2
7.2 even 3 392.2.i.g.361.2 4
7.3 odd 6 392.2.i.g.177.1 4
7.4 even 3 392.2.i.g.177.2 4
7.5 odd 6 392.2.i.g.361.1 4
7.6 odd 2 inner 392.2.a.h.1.2 yes 2
8.3 odd 2 3136.2.a.bq.1.1 2
8.5 even 2 3136.2.a.bt.1.2 2
12.11 even 2 7056.2.a.cj.1.2 2
21.2 odd 6 3528.2.s.be.361.1 4
21.5 even 6 3528.2.s.be.361.2 4
21.11 odd 6 3528.2.s.be.3313.1 4
21.17 even 6 3528.2.s.be.3313.2 4
21.20 even 2 3528.2.a.bj.1.1 2
28.3 even 6 784.2.i.k.177.2 4
28.11 odd 6 784.2.i.k.177.1 4
28.19 even 6 784.2.i.k.753.2 4
28.23 odd 6 784.2.i.k.753.1 4
28.27 even 2 784.2.a.n.1.1 2
35.34 odd 2 9800.2.a.bw.1.1 2
56.13 odd 2 3136.2.a.bt.1.1 2
56.27 even 2 3136.2.a.bq.1.2 2
84.83 odd 2 7056.2.a.cj.1.1 2
    
        By twisted newform
Twist Min Dim Char Parity Ord Type
392.2.a.h.1.1 ✓ 2 1.1 even 1 trivial
392.2.a.h.1.2 yes 2 7.6 odd 2 inner
392.2.i.g.177.1 4 7.3 odd 6
392.2.i.g.177.2 4 7.4 even 3
392.2.i.g.361.1 4 7.5 odd 6
392.2.i.g.361.2 4 7.2 even 3
784.2.a.n.1.1 2 28.27 even 2
784.2.a.n.1.2 2 4.3 odd 2
784.2.i.k.177.1 4 28.11 odd 6
784.2.i.k.177.2 4 28.3 even 6
784.2.i.k.753.1 4 28.23 odd 6
784.2.i.k.753.2 4 28.19 even 6
3136.2.a.bq.1.1 2 8.3 odd 2
3136.2.a.bq.1.2 2 56.27 even 2
3136.2.a.bt.1.1 2 56.13 odd 2
3136.2.a.bt.1.2 2 8.5 even 2
3528.2.a.bj.1.1 2 21.20 even 2
3528.2.a.bj.1.2 2 3.2 odd 2
3528.2.s.be.361.1 4 21.2 odd 6
3528.2.s.be.361.2 4 21.5 even 6
3528.2.s.be.3313.1 4 21.11 odd 6
3528.2.s.be.3313.2 4 21.17 even 6
7056.2.a.cj.1.1 2 84.83 odd 2
7056.2.a.cj.1.2 2 12.11 even 2
9800.2.a.bw.1.1 2 35.34 odd 2
9800.2.a.bw.1.2 2 5.4 even 2